What is the ruling on purchasing a car from an Islamic bank if the contract includes a clause stipulating the forfeiture of the right to pay in installments and the immediate maturity of all installments, along with a demand for compensation for actual damages, in the event of delay in paying any installment?

It is permissible for the bank or the seller to stipulate that the remaining deferred installments become due upon the debtor's procrastination, unless the debtor is in genuine hardship. However, the bank's stipulation of its right to demand compensation from the buyer for actual damages (late payment penalty) is impermissible, as it constitutes clear usury (riba). Nevertheless, it is permissible to charge the procrastinating debtor for litigation and lawyer fees if the creditor takes legal action against him.